You will never pass the examination _______ you _______ harder.

You will never pass the examination _______ you _______ harder.
A、unless,don’t study
B、unless,study
C、if,study
D、if,not study
【正确答案】：B
【题目解析】：unless 除非，句意：你不会通过这次考试的，除非你用功学习。B符合题意